Women who go through multiple rounds of IVF have a significantly higher chance of having a baby, research shows.

The Medical Journal of Australia has published the first report on cumulative live birth rates for complete ovarian stimulation cycles.

In other words: the chances of having a baby from multiple rounds of IVF or other types of assisted reproduction.

Currently, women who seek assistance in having a baby are counselled on their chances of success based on individual cycles, but this research is seeking to change that.

The researchers followed over 56,000 women who completed eight cycles of treatment in Australia and New Zealand during 2009-2012, and followed them until 2014, or the first treatment-dependent live birth.

For women aged 40, success rates for live births increased from 10 per cent to roughly 40 per cent by the seventh cycle.

"What this shows is that women going into IVF today have a very reasonable chance of getting pregnant," researcher Michael Chapman said.

Professor Chapman said success rates soared for younger women.

"A 35-year-old for instance can be fairly certain that she's got a better than 70 per cent chance of taking home a baby with current modern technology," he said.

So what is behind the higher success rates?

Michael Chapman said it is a numbers game, and that up until now the data on multiple cycles has not been made available.

"We've now got long term data where we identify individual women and can follow them through."

New mum 'gutted' after failed IVF

Kristy O'Brien's story matches up with this latest research.

But she did not have an easy time during her journey through multiple cycles of IVF.

"I got all excited with the first cycle thinking, 'yep, there's a chance this will work, this is great'," she said.